AutoCAD PDF (Smallest File) Preset Explained
AutoCAD PDF (Smallest File) is one of AutoCAD's predefined PDF PC3 presets. Its default vector quality is 400 dpi and raster quality is 200 dpi; it does not include PDF layer information by default.
Start here — what you are going to do
Your goal: Understand when AutoCAD PDF (Smallest File) is appropriate and verify it on a representative CAD sheet.
Where to start: Open a finished Layout and decide how the PDF will be delivered or printed.
Beginner rule: Use preset names as starting points, then verify the actual PDF. A preset cannot decide project requirements for you.
Step by step — follow this in AutoCAD
Step 1 — Open Plot
Where: Layout > Ctrl+P.
Do this: Open Printer/Plotter > Name.
Check: PDF presets are visible.
Step 2 — Choose AutoCAD PDF (Smallest File)
Where: Printer/Plotter list.
Do this: Select AutoCAD PDF (Smallest File).
Check: Intended PC3 is active.
Step 3 — Confirm paper and scale
Where: Paper Size / Plot Area / Plot Scale.
Do this: Use real Layout paper and 1:1 output.
Check: Preset is not masking setup error.
Step 4 — Review PDF options
Where: Properties / PDF Options.
Do this: Read vector/raster quality and data settings.
Check: Defaults match needs.
Step 5 — Create representative PDF
Where: Preview > Plot.
Do this: Save one sheet.
Check: PDF is created.
Step 6 — Inspect behavior
Where: PDF viewer.
Do this: Check detail, file size, layers/text and printability.
Check: Preset is suitable.
Beginner example
It is intended to minimize PDF file size. Its lower quality and reduced data features are useful for quick distribution, not every issue set.
Understand what AutoCAD is doing
Default quality is a starting point
This preset uses 400 dpi vector quality and 200 dpi raster quality in Autodesk’s reference.
Layer data is part of the preset
Layer information is not included by default.
A named Page Setup should store the choice
That keeps the team from selecting a different preset every time.
Useful next guides: AutoCAD PDF Presets Explained · Vector vs Raster PDF Quality · AutoCAD PDF Resolution Settings Explained · Create a Custom AutoCAD PDF Preset · Plot an AutoCAD Drawing to PDF
Common problems and what to check first
| What you see | What may be causing it | Check this first |
|---|---|---|
| File larger than expected | Quality/data higher than needed | Compare another/custom preset. |
| Fine detail poor | Quality too low for content/use | Test higher settings. |
| Layers unavailable | Preset excludes layers by default | Check Include Layer Information. |
| Users inconsistent | Different preset/Page Setup | Standardize. |
When you need a more repeatable workflow
If this preset becomes an office standard, keep it inside named Page Setups and document any custom changes.
Official Autodesk references
AutoCAD labels and available media can vary by release, driver and output device. These Autodesk pages document the core workflow used in this guide.
Frequently asked questions
Can I edit the preset?
Yes, but save a controlled custom PC3.
Does preset set paper size?
Paper is still selected in Page Setup/Plot.
Should I always use highest DPI?
No.
Explore more in CAD PDF & Publishing Guide.